Based on the available information, Black Walnut Bottom is a boat ramp located in Pennsylvania with the coordinates 41.44800949 latitude and -77.51790619 longitude. This boat ramp is situated in Tioga County and services the Tioga River.

According to the Pennsylvania Fish and Boat Commission, the Black Walnut Bottom boat ramp is 18 feet wide, making it suitable for smaller watercraft such as canoes, kayaks, and small fishing boats. The ramp is also suitable for trailers and larger boats, but it may be necessary to launch them in stages due to the narrow width of the ramp.

The Tioga River is a popular destination for fishing, particularly for trout, bass, and panfish. The river is also suitable for recreational paddling and kayaking, although water levels can vary significantly depending on the weather and other factors.

In terms of regulations, all boats using Black Walnut Bottom boat ramp must be registered and have a valid Pennsylvania Fish and Boat Commission registration sticker. Additionally, all boats must comply with state and federal regulations for safety equipment, including life jackets, navigation lights, and fire extinguishers.

Overall, Black Walnut Bottom boat ramp is a small but important access point for recreational boaters and anglers looking to explore the Tioga River.